20312230013112 has 64 divisors (see below), whose sum is σ = 52412028105600. Its totient is φ = 6556641886080.

The previous prime is 20312230013077. The next prime is 20312230013129. The reversal of 20312230013112 is 21131003221302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 106955839 + ... + 107145582.

It is an arithmetic number, because the mean of its divisors is an integer number (818937939150).

Almost surely, 2^{20312230013112} is an apocalyptic number.

It is an amenable number.

20312230013112 is an abundant number, since it is smaller than the sum of its proper divisors (32099798092488).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20312230013112 is a wasteful number, since it uses less digits than its factorization.

20312230013112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214101556 (or 214101552 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 20312230013112 its reverse (21131003221302), we get a palindrome (41443233234414).

The spelling of 20312230013112 in words is "twenty trillion, three hundred twelve billion, two hundred thirty million, thirteen thousand, one hundred twelve".